Although a kind of veg grow best in slenderly acid orcauses - acidic - soils.html'>acidic land , there ’s a limit point to the level of acidity plants can tolerate . Acidityis measured on the so - called pH graduated table , ranging from 1 to 14 . Unlike temperature , the pH scale changes by a factor of 10 for each social unit . So a pH of 6.0 is 10 fourth dimension more acidic than a pH of 7.0 , and a pH of 5.0 is 100 time more acidic than a pH of 7.0 . Seven is electroneutral , and pH numbers above 7.0 indicate alkaline weather , which are basically the opposite of acidic .
There are no rigid cutoff numbers or formal definition forslightly acidicversusacidic , but as a rule of thumb , view pH numbers between 6.0 and 7.0 as slightly acidulent and those below 6.0 as acidic .
Vegetables That “Like” Slightly Acidic Soils
Slightly Acidic to Alkaline
Cabbage ( Brassica oleracea’Capitata ' ) and beets ( Beta vulgaris’Crassa ' ) are two vegetable crops that have a pretty broad optimal pH range , include up into the alkaline range , between 6.0 and 8.0 . pea ( Pisum sativum ) and Spinacia oleracea ( Spinacia oleracea ) prefer a stove between 6.0 and 7.5
Slightly Acidic
Lettuce ( Lactuca sativa ) , summertime squash ( Cucurbita pepo ) , winter squash ( Cucurbita maxima ) , cauliflower ( Brassica oleracea’Botrytis ' ) , radishes ( Raphanus sativas ) , chives ( Allium schoenoprasum ) , Apium graveolens dulce ( Apium graveolens ) , broccoli ( Brassica oleracea’Italica ' ) , endive ( genus Cichorium endiva ) and cultivated carrot ( Daucus carota ) have a preferred pH range of 6.0 to 7.0 .
Vegetables That Like Acidic Soils
Test Your Soil
There ’s no reliable path to venture about or estimate soil pH , so having the grease test is the good coming to guarantee that your vegetables have the right acidity degree . The Cooperative Extension System offices in your statecan assist with this .
cucumber ( Cucumis sativus ) , eggplants ( Solanum melongena ) , peppers ( pepper annuum ) , beans ( Phaseolus vulgaris ) , swede ( Brassica napus’Napobrassica ' ) and parsnip ( Pastinaca sativa ) are all suited to acidulent soils down to a pH of 5.5 . total to these tomatoes ( Lycopersicon esculentum ) , pumpkins ( Cucurbitaspp . ) and mellisonant corn ( Zea mays ) — suited to a pH range between 5.5 and 7.5 . white potato ( Solanum tuberosum ) are something of a special case , with an optimal blue end limit of 5.0 on the pH scale .
Tip
Besides their ability to tolerate such acidulent soil conditions , potatoes are a special casing for another grounds . They are susceptible to the fungal disease white potato vine strikebreaker . The murphy plant ’s optimal pH reach extends up to 6.5 , but those high pH levels favor the pathogen that causes the blackleg disease . So a grime pH between 5.0 and 5.2 can greatly reduce the transmission rate .
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